5(1)For the purpose of securing the efficient maintenance of the main and general sewerage of their sewerage area, the Greater London Council shall make such orders as they think proper—
(a)for the guidance, direction and control of councils of London boroughs and county districts in relation to the levels, construction, abandonment, alteration, maintenance and cleansing of sewers in their respective areas ;
(b)for securing that proper communications are made between the various sewers vested in the councils of London boroughs and county districts and between those sewers and the sewers vested in the Greater London Council;
(c)generally for the guidance, direction and control of councils of London boroughs and county districts in the discharge of their functions in relation to sewerage.
(2)Orders under this paragraph may be so framed as to apply generally or to any particular case or class of case and may make different provision for different cases.
(3)Where the Greater London Council propose to make an order under this paragraph they shall serve a copy of a draft of the order on such as will be affected of the councils of the boroughs and county districts wholly or partially situate within their sewerage area, and any council affected may within six weeks of the service on them of a copy of the draft order refer to the Minister the question whether the order or any provision thereof should be made or whether it should contain other provisions in addition to or in substitution for those contained in the draft order ; and on the determination of the reference the Minister may confirm or disallow the draft order and, if he confirms it, may make such modifications thereof as he thinks fit.
(4)An order under this paragraph shall not be made until the expiration of six weeks beginning with the service of the last copy of the draft order to be served or, if it is referred to the Minister, until the Minister has determined the reference and confirmed the order with or without modifications.
(5)On its coming into force, an order under this paragraph shall be binding on the councils of London boroughs and county districts.